Silent film refers to a genre of cinema that was produced without synchronized sound, particularly dialogue. These films relied on visual storytelling, using expressive acting, title cards, and music to convey emotions and plot. The silent film era primarily spanned from the late 19th century until the late 1920s, when sound technology began to be integrated into movies. During this time, notable figures like Charlie Chaplin and Buster Keaton emerged as iconic stars, known for their comedic performances. Silent films often featured elaborate sets and innovative cinematography, paving the way for modern filmmaking techniques. The transition to sound films, known as "talkies," marked the end of the silent film era.